This research paper examines the synthesis and characterization of Y-type hexaferrite Ba2Co2Fe12O22 nanoparticles produced using the sol-gel method. The study explores their structural, magnetic, and electrical properties, confirming the successful synthesis of pure-phase hexaferrites with a hexagonal structure at an annealing temperature of 1150 degrees C. Morphological analysis reveals changes in nanoparticle diameter based on varying annealing temperatures. The Ba2Co2Fe12O22 nanoparticles display soft ferrimagnetism, achieving a peak saturation magnetization of 52.31 emu/g at 1150 degrees C, along with notable magnetocrystalline anisotropy and anisotropy field. Investigations on magnetocapacitance and magnetoconductivity under magnetic fields revealed improved performance, with high magnetocapacitance (MC%) and magnetoconductivity (M sigma(AC)%) percentages of 24 % and 21 %, respectively. This suggests the potential utility of these nanoparticles in applications such as permanent magnets, magnetic recording media, and spintronic devices. C1 [Yadav, Sandeep Kumar] Natl Inst Technol Tiruchirappalli, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India. [Soosairaj, Amutha; Divya, K.; Arunmozhi, A. Alex] Bharathidasan Univ, St Josephs Coll Autonomous, Dept Phys, Tiruchirappalli 620002, India. [Asirvatham, Leo Rajesh] Pondicherry Univ, Dept Phys, Pondicherry 605014, India. [Pabba, Durga Prasad] Univ Tecnol Metropolitana, Fac Ingn, Dept Electr, Santiago, Chile. [Manikandan, V. S.; Thirumurugan, Arun] Univ Atacama, Sede Vallenar, Costanera 105, Vallenar 1612178, Chile. [Navaneethan, M.] SRM Inst Sci & Technol, Dept Phys & Nanotechnol, Funct Mat & Energy Devices Lab, Chennai 603203, India. [Navaneethan, M.] SRM Inst Sci & Technol, Nanotechnol Res Ctr NRC, Chennai 603203, India. C3 National Institute of Technology (NIT System); National Institute of Technology Tiruchirappalli; Bharathidasan University; Pondicherry University; Universidad Tecnologica Metropolitana; Universidad de Atacama; SRM Institute of Science & Technology Chennai; SRM Institute of Science & Technology Chennai